Crystalline Intergrowth Material, Its Synthesis And Its Use In The Conversion Of Oxygenates To Olefins

A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrow...

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Hauptverfasser: JANSSEN MARCEL J, CHANG YUN FENG, CLEM KENNETH RAY, MERTENS MACHTELD M, VERBERCKMOES AN, MORTIER WILFRIED J, VAUGHN STEPHEN NELL, MARTENS LUC R.M
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Sprache:eng
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Zusammenfassung:A silicoaluminophosphate molecular sieve is disclosed that comprises first and second intergrown phases of a CHA framework type and an AEI framework type, wherein said first intergrown phase has an AEI/CHA ratio of from about 5/95 to about 40/60 as determined by DIFFaX analysis, the second intergrown phase has an AEI/CHA ratio of about 30/70 to about as determined by DIFFaX analysis and said molecular sieve has a silica to alumina molar ratio (Si/Al2) from about 0.13 to about 0.24.